Tag: Megadose

The Tolerable Upper Intake Level (UL) for adults for vitamin C is 2,000 mg per day, according to the National Institutes of Health. Consequently, taking 100,000 mg of vitamin C (100 grams) is a massive overdose that can provoke immediate, severe gastrointestinal distress and pose serious health risks, particularly to those with certain pre-existing conditions.

While vitamin C is a crucial nutrient for immune function and overall health, research consistently shows that it does not prevent colds for the average person. We explore whether taking supplemental doses, especially when ill, genuinely helps you feel better when sick, or if it is just a comforting myth.